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Physiol Rev. 2016 Oct;96(4):1211-59. doi: 10.1152/physrev.00038.2015. Epub 2016 Aug 3.

Platelets in Pulmonary Immune Responses and Inflammatory Lung Diseases.

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Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, and the Program in Molecular Medicine, University of Utah School of Medicine, Salt Lake City, Utah.


Platelets are essential for physiological hemostasis and are central in pathological thrombosis. These are their traditional and best known activities in health and disease. In addition, however, platelets have specializations that broaden their functional repertoire considerably. These functional capabilities, some of which are recently discovered, include the ability to sense and respond to infectious and immune signals and to act as inflammatory effector cells. Human platelets and platelets from mice and other experimental animals can link the innate and adaptive limbs of the immune system and act across the immune continuum, often also linking immune and hemostatic functions. Traditional and newly recognized facets of the biology of platelets are relevant to defensive, physiological immune responses of the lungs and to inflammatory lung diseases. The emerging view of platelets as blood cells that are much more diverse and versatile than previously thought further predicts that additional features of the biology of platelets and of megakaryocytes, the precursors of platelets, will be discovered and that some of these will also influence pulmonary immune defenses and inflammatory injury.

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